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author | aamine <aamine@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2004-03-05 11:20:12 +0000 |
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committer | aamine <aamine@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2004-03-05 11:20:12 +0000 |
commit | 492dfc7c0839f406008e52b2b09db349791e2895 (patch) | |
tree | f4214efbdd1b9c1e13c140138e92241905dab943 /ext/strscan/strscan.c | |
parent | 87275504ab0690e243401db6985f6253ccc17b65 (diff) | |
download | ruby-492dfc7c0839f406008e52b2b09db349791e2895.tar.gz |
* ext/strscan/strscan.c: new method StringScanner#initialize_copy to allow #dup and #clone.
* test/strscan/test_strscan.rb: test StringScanner#dup.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5889 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/strscan/strscan.c')
-rw-r--r-- | ext/strscan/strscan.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/ext/strscan/strscan.c b/ext/strscan/strscan.c index 227ed92305..68471ed461 100644 --- a/ext/strscan/strscan.c +++ b/ext/strscan/strscan.c @@ -73,10 +73,12 @@ static VALUE infect _((VALUE str, struct strscanner *p)); static VALUE extract_range _((struct strscanner *p, long beg_i, long end_i)); static VALUE extract_beg_len _((struct strscanner *p, long beg_i, long len)); +void check_strscan _((VALUE obj)); static void strscan_mark _((struct strscanner *p)); static void strscan_free _((struct strscanner *p)); static VALUE strscan_s_allocate _((VALUE klass)); static VALUE strscan_initialize _((int argc, VALUE *argv, VALUE self)); +static VALUE strscan_init_copy _((VALUE vself, VALUE vorig)); static VALUE strscan_s_mustc _((VALUE self)); static VALUE strscan_terminate _((VALUE self)); @@ -217,6 +219,38 @@ strscan_initialize(argc, argv, self) return self; } +void +check_strscan(obj) + VALUE obj; +{ + if (TYPE(obj) != T_DATA || RDATA(obj)->dmark != (RUBY_DATA_FUNC)strscan_mark) { + rb_raise(rb_eTypeError, + "wrong argument type %s (expected StringScanner)", + rb_obj_classname(obj)); + } +} + +/* + * call-seq: + * dup + * clone + * + * Duplicates a StringScanner object. + */ +static VALUE +strscan_init_copy(vself, vorig) + VALUE vself, vorig; +{ + struct strscanner *self, *orig; + + Data_Get_Struct(vself, struct strscanner, self); + check_strscan(vorig); + Data_Get_Struct(vorig, struct strscanner, orig); + memmove(self, orig, sizeof(struct strscanner)); + + return vself; +} + /* ======================================================================= Instance Methods @@ -1291,6 +1325,7 @@ Init_strscan() rb_define_alloc_func(StringScanner, strscan_s_allocate); rb_define_private_method(StringScanner, "initialize", strscan_initialize, -1); + rb_define_private_method(StringScanner, "initialize_copy", strscan_init_copy, 1); rb_define_singleton_method(StringScanner, "must_C_version", strscan_s_mustc, 0); rb_define_method(StringScanner, "reset", strscan_reset, 0); rb_define_method(StringScanner, "terminate", strscan_terminate, 0); |